package ch.hearc.ig.android.crudpersonnes.screen;

import ch.hearc.ig.android.crudpersonnes.communication.PersonneServiceCaller;
import ch.hearc.ig.android.crudpersonnes.utils.PersonneUtil;
import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.Intent;
import android.content.SharedPreferences;
import android.os.Build;
import android.os.Bundle;
import android.text.TextUtils;
import android.util.Log;
import android.view.KeyEvent;
import android.view.Menu;
import android.view.View;
import android.view.inputmethod.EditorInfo;
import android.widget.CheckBox;
import android.widget.EditText;
import android.widget.TextView;

/**
 * Activity which displays a login screen to the user, offering registration as
 * well.
 */
public class LoginActivity extends Activity {
	/**
	 * A dummy authentication store containing known user names and passwords.
	 * TODO: remove after connecting to a real authentication system. change
	 * comment for commit
	 */
	// private static final String[] DUMMY_CREDENTIALS = new String[] {
	// "foo@example.com:hello", "bar@example.com:world" };

	/**
	 * The default email to populate the email field with.
	 * 
	 * public static final String EXTRA_EMAIL =
	 * "com.example.android.authenticatordemo.extra.EMAIL";
	 */
	/**
	 * Keep track of the login task to ensure we can cancel it if requested.
	 */
	// private UserLoginTask mAuthTask = null;
	private PersonneServiceCaller mAuthTask = null;

	public static final String PREFS_NAME = "CRUD_Prefs";
	
	public static String SESSION_ID = null;

	// Values for email and password at the time of the login attempt.
	private String mEmail;
	private String mPassword;

	// UI references.
	private EditText mEmailView;
	private EditText mPasswordView;
	private View mLoginFormView;
	private View mLoginStatusView;
	private TextView mLoginStatusMessageView;

	public void SetMAuthTask(PersonneServiceCaller l_mAuthTask) {
		this.mAuthTask = l_mAuthTask;
	}

	public EditText getMEmailView() {
		return this.mEmailView;
	}

	public EditText getMPasswordView() {
		return this.mPasswordView;
	}

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);

		setContentView(R.layout.activity_login);

		// Set up the login form.
		// mEmail = getIntent().getStringExtra(EXTRA_EMAIL);
		mEmailView = (EditText) findViewById(R.id.email);
		mEmailView.setText(mEmail);

		mPasswordView = (EditText) findViewById(R.id.password);
		mPasswordView
				.setOnEditorActionListener(new TextView.OnEditorActionListener() {
					@Override
					public boolean onEditorAction(TextView textView, int id,
							KeyEvent keyEvent) {
						if (id == R.id.login || id == EditorInfo.IME_NULL) {
							attemptLogin();
							return true;
						}
						return false;
					}
				});

		mLoginFormView = findViewById(R.id.login_form);
		mLoginStatusView = findViewById(R.id.login_status);
		mLoginStatusMessageView = (TextView) findViewById(R.id.login_status_message);

		if (getSharedPreferences(PREFS_NAME, 0).getString("user", null)!=null && getSharedPreferences(PREFS_NAME, 0).getString("password", null)!=null){
			mEmailView.setText(getSharedPreferences(PREFS_NAME, 0).getString("user", null));
			mPasswordView.setText(getSharedPreferences(PREFS_NAME, 0).getString("password", null));
			attemptLogin();
		}
	}

	public void onClicksign_in_button(View v) {

		attemptLogin();
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		super.onCreateOptionsMenu(menu);
		getMenuInflater().inflate(R.menu.login, menu);
		return true;
	}

	/**
	 * Attempts to sign in or register the account specified by the login form.
	 * If there are form errors (invalid email, missing fields, etc.), the
	 * errors are presented and no actual login attempt is made.
	 */
	public void attemptLogin() {
		if (mAuthTask != null) {
			return;
		}

		// Reset errors.
		mEmailView.setError(null);
		mPasswordView.setError(null);

		// Store values at the time of the login attempt.
		mEmail = mEmailView.getText().toString();
		mPassword = mPasswordView.getText().toString();

		boolean cancel = false;
		View focusView = null;

		// Check for a valid password.
		if (TextUtils.isEmpty(mPassword)) {
			mPasswordView.setError(getString(R.string.error_field_required));
			focusView = mPasswordView;
			cancel = true;
		} else if (mPassword.length() < 4) {
			mPasswordView.setError(getString(R.string.error_invalid_password));
			focusView = mPasswordView;
			cancel = true;
		}

		// Check for a valid email address.
		if (TextUtils.isEmpty(mEmail)) {
			mEmailView.setError(getString(R.string.error_field_required));
			focusView = mEmailView;
			cancel = true;
		} else if (!mEmail.contains("@")) {
			mEmailView.setError(getString(R.string.error_invalid_email));
			focusView = mEmailView;
			cancel = true;
		}

		if (cancel) {
			// There was an error; don't attempt login and focus the first
			// form field with an error.
			focusView.requestFocus();
		} else {
			// Show a progress spinner, and kick off a background task to
			// store the user preference if checkbox is selected
			// perform the user login attempt.
			mLoginStatusMessageView.setText(R.string.login_progress_signing_in);
			showProgress(true);
			final CheckBox checkBox = (CheckBox) findViewById(R.id.keep_credentials);
			if (checkBox.isChecked()) {
				// use of shared preference is not the best way as it is not
				// very protected
				// Account manager would be a lot better but is heavy to
				// implement
				SharedPreferences settings = getSharedPreferences(PREFS_NAME, 0);
				SharedPreferences.Editor editor = settings.edit();
				editor.putString("user", mEmail);
				editor.putString("password", mPassword);
				editor.commit();
			}
			if (getSharedPreferences(PREFS_NAME, 0).getString("user", null)!=null && getSharedPreferences(PREFS_NAME, 0).getString("password", null)!=null){
				Log.v("LoginActivity", "user"+getSharedPreferences(PREFS_NAME, 0).getString("user", null));
				Log.v("LoginActivity", "password"+getSharedPreferences(PREFS_NAME, 0).getString("user", null));
			}
			mAuthTask = new PersonneServiceCaller(LoginActivity.this);
			mAuthTask.execute(PersonneUtil.createParamlist("ServiceSession",
					null, null, null, null, null, null, mEmail,
					mPassword, "login"));
		}
	}

	/**
	 * Shows the progress UI and hides the login form.
	 */
	@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
	public void showProgress(final boolean show) {
		// On Honeycomb MR2 we have the ViewPropertyAnimator APIs, which allow
		// for very easy animations. If available, use these APIs to fade-in
		// the progress spinner.
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
			int shortAnimTime = getResources().getInteger(
					android.R.integer.config_shortAnimTime);

			mLoginStatusView.setVisibility(View.VISIBLE);
			mLoginStatusView.animate().setDuration(shortAnimTime)
					.alpha(show ? 1 : 0)
					.setListener(new AnimatorListenerAdapter() {
						@Override
						public void onAnimationEnd(Animator animation) {
							mLoginStatusView.setVisibility(show ? View.VISIBLE
									: View.GONE);
						}
					});

			mLoginFormView.setVisibility(View.VISIBLE);
			mLoginFormView.animate().setDuration(shortAnimTime)
					.alpha(show ? 0 : 1)
					.setListener(new AnimatorListenerAdapter() {
						@Override
						public void onAnimationEnd(Animator animation) {
							mLoginFormView.setVisibility(show ? View.GONE
									: View.VISIBLE);
						}
					});
		} else {
			// The ViewPropertyAnimator APIs are not available, so simply show
			// and hide the relevant UI components.
			mLoginStatusView.setVisibility(show ? View.VISIBLE : View.GONE);
			mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
		}
	}

	/**
	 * Represents an asynchronous login/registration task used to authenticate
	 * the user.
	 * 
	 * 
	 * 
	 * 
	 * 
	 */
	/*
	 * public class UserLoginTask extends AsyncTask<Void, Void, Boolean> {
	 * 
	 * @Override protected Boolean doInBackground(Void... params) { // TODO:
	 * attempt authentication against a network service.
	 * 
	 * try { // Simulate network access. Thread.sleep(2000); } catch
	 * (InterruptedException e) { return false; }
	 * 
	 * for (String credential : DUMMY_CREDENTIALS) { String[] pieces =
	 * credential.split(":"); if (pieces[0].equals(mEmail)) { // Account exists,
	 * return true if the password matches. return pieces[1].equals(mPassword);
	 * } }
	 * 
	 * // TODO: register the new account here. return true; }
	 * 
	 * @Override protected void onPostExecute(final Boolean success) { mAuthTask
	 * = null; showProgress(false);
	 * 
	 * if (success) { finish(); } else { mPasswordView
	 * .setError(getString(R.string.error_incorrect_password));
	 * mPasswordView.requestFocus(); } }
	 * 
	 * @Override protected void onCancelled() { mAuthTask = null;
	 * showProgress(false); } }
	 */

	/*
	 * temporary method to bypass the login and go to the wanted screen you can
	 * change the intended class if you want to reach an other screen
	 */
	public void onClickForceLogin(View v) {

		Intent intent = new Intent(LoginActivity.this,
				PersonneListActivity.class);
		startActivity(intent);
	}

}
